Mybatis SQL 拦截器

一、前言

新的项目中需要检测sql，其实已经有了druid statview的检测了，不过自己还是想直接再console中看执行的情况，所以再网上找了一个mybatis的拦截器，根据需要个格式改吧改吧，就好了。

二、代码

package com.core.interceptor;


import java.text.DateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Properties;

import org.apache.ibatis.executor.Executor;
import org.apache.ibatis.mapping.BoundSql;
import org.apache.ibatis.mapping.MappedStatement;
import org.apache.ibatis.mapping.ParameterMapping;
import org.apache.ibatis.plugin.Interceptor;
import org.apache.ibatis.plugin.Intercepts;
import org.apache.ibatis.plugin.Invocation;
import org.apache.ibatis.plugin.Plugin;
import org.apache.ibatis.plugin.Signature;
import org.apache.ibatis.reflection.MetaObject;
import org.apache.ibatis.session.Configuration;
import org.apache.ibatis.session.ResultHandler;
import org.apache.ibatis.session.RowBounds;
import org.apache.ibatis.type.TypeHandlerRegistry;

/**
 * 注解拦截接口的方法
 * Executor (update, query, flushStatements, commit, rollback, getTransaction, close, isClosed)
 * ParameterHandler (getParameterObject, setParameters)
 * ResultSetHandler (handleResultSets, handleOutputParameters)
 * StatementHandler (prepare, parameterize, batch, update, query)
 */
@Intercepts({
        @Signature(type = Executor.class, method = "update", args = { MappedStatement.class, Object.class }),
        @Signature(type = Executor.class, method = "query", args = { MappedStatement.class, Object.class,
                RowBounds.class, ResultHandler.class }) })
public class MyBatisSQLInterceptor implements Interceptor {

    private Properties properties;

    public Object intercept(Invocation invocation) throws Throwable {
        MappedStatement mappedStatement = (MappedStatement) invocation.getArgs()[0];
        Object parameter = null;
        if (invocation.getArgs().length > 1) {
            parameter = invocation.getArgs()[1];
        }
        String sqlId = mappedStatement.getId();
        BoundSql boundSql = mappedStatement.getBoundSql(parameter);
        Configuration configuration = mappedStatement.getConfiguration();
        Object returnValue = null;
        long start = System.currentTimeMillis();
        returnValue = invocation.proceed();
        long end = System.currentTimeMillis();
        long time = (end - start);
        if (time > 1) {
            String sql = getSql(configuration, boundSql, sqlId, time);
            System.out.println(sql);
        }
        return returnValue;
    }

    public static String getSql(Configuration configuration, BoundSql boundSql, String sqlId, long time) {
        Map map = showSql(configuration, boundSql);
        StringBuilder str = new StringBuilder(100);
        str.append(">>>SQLInterceptor\n");
        str.append("[BaseMethod  ] : "+sqlId+"\n");
        str.append("[ParamterSize] : "+map.get("size")+"\n");
        str.append("[ExecuteSql  ] : "+map.get("sql")+"\n");
        List list = (List) map.get("list");
        String arr = "" ;
        for (int i = 0; i < list.size(); i++) {
            String item = list.get(i).toString().replaceAll("'", "");
            if(arr.length() > 0){
                arr += " , "+item;
            }else{
                arr += item;
            }
        }
        str.append("[ParamterList] : "+arr+"\n");
        str.append("[ExecuteTime ] : "+time+" ms");
        return str.toString();
    }

    private static String getParameterValue(Object obj) {
        String value = null;
        if (obj instanceof String) {
            value = "'" + obj.toString() + "'";
        } else if (obj instanceof Date) {
            DateFormat formatter = DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT, Locale.CHINA);
            value = "'" + formatter.format(new Date()) + "'";
        } else {
            if (obj != null) {
                value = obj.toString();
            } else {
                value = "";
            }

        }
        return value;
    }

    public static Map showSql(Configuration configuration, BoundSql boundSql) {
        Object parameterObject = boundSql.getParameterObject();
        List<ParameterMapping> parameterMappings = boundSql.getParameterMappings();
        String sql = boundSql.getSql().replaceAll("[\\s]+", " ");
        //设置返回参数
        Map map = new HashMap();
        //格式化sql
        map.put("sql", sql);
        if (parameterMappings.size() > 0 && parameterObject != null) {
            //参数长度
            map.put("size", parameterMappings.size());
            //参数List
            List list = new ArrayList();
            TypeHandlerRegistry typeHandlerRegistry = configuration.getTypeHandlerRegistry();
            if (typeHandlerRegistry.hasTypeHandler(parameterObject.getClass())) {//单个参数
                //sql = sql.replaceFirst("\\?", getParameterValue(parameterObject));
                //添加参数
                list.add(getParameterValue(parameterObject));
            } else {//多个参数
                MetaObject metaObject = configuration.newMetaObject(parameterObject);
                for (ParameterMapping parameterMapping : parameterMappings) {
                    String propertyName = parameterMapping.getProperty();
                    if (metaObject.hasGetter(propertyName)) {
                        Object obj = metaObject.getValue(propertyName);
//                        sql = sql.replaceFirst("\\?", getParameterValue(obj));
                        list.add(getParameterValue(getParameterValue(obj)));
                    } else if (boundSql.hasAdditionalParameter(propertyName)) {
                        Object obj = boundSql.getAdditionalParameter(propertyName);
//                        sql = sql.replaceFirst("\\?", getParameterValue(obj));
                        list.add(getParameterValue(getParameterValue(obj)));
                    }
                }
            }
            map.put("list", list);
        }
        return map;
    }

    public Object plugin(Object target) {
        return Plugin.wrap(target, this);
    }

    public void setProperties(Properties properties0) {
        this.properties = properties0;
    }
}

-end-